From ca32f08966f1b51fcb19460f0996bb0c4048e6fe Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Sat, 3 Dec 2011 13:29:22 +0100
Subject: Update to MediaWiki 1.18.0

* also update ArchLinux skin to chagnes in MonoBook
* Use only css to hide our menu bar when printing
---
 includes/objectcache/MultiWriteBagOStuff.php | 113 +++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 includes/objectcache/MultiWriteBagOStuff.php

(limited to 'includes/objectcache/MultiWriteBagOStuff.php')

diff --git a/includes/objectcache/MultiWriteBagOStuff.php b/includes/objectcache/MultiWriteBagOStuff.php
new file mode 100644
index 00000000..2b88b427
--- /dev/null
+++ b/includes/objectcache/MultiWriteBagOStuff.php
@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * A cache class that replicates all writes to multiple child caches. Reads 
+ * are implemented by reading from the caches in the order they are given in 
+ * the configuration until a cache gives a positive result.
+ */
+class MultiWriteBagOStuff extends BagOStuff {
+	var $caches;
+
+	/**
+	 * Constructor. Parameters are:
+	 *
+	 *   - caches:   This should have a numbered array of cache parameter 
+	 *               structures, in the style required by $wgObjectCaches. See
+	 *               the documentation of $wgObjectCaches for more detail.
+	 *
+	 * @param $params array
+	 */
+	public function __construct( $params ) {
+		if ( !isset( $params['caches'] ) ) {
+			throw new MWException( __METHOD__.': the caches parameter is required' );
+		}
+
+		$this->caches = array();
+		foreach ( $params['caches'] as $cacheInfo ) {
+			$this->caches[] = ObjectCache::newFromParams( $cacheInfo );
+		}
+	}
+
+	public function setDebug( $debug ) {
+		$this->doWrite( 'setDebug', $debug );
+	}
+
+	public function get( $key ) {
+		foreach ( $this->caches as $cache ) {
+			$value = $cache->get( $key );
+			if ( $value !== false ) {
+				return $value;
+			}
+		}
+		return false;
+	}
+
+	public function set( $key, $value, $exptime = 0 ) {
+		return $this->doWrite( 'set', $key, $value, $exptime );
+	}
+
+	public function delete( $key, $time = 0 ) {
+		return $this->doWrite( 'delete', $key, $time );
+	}
+
+	public function add( $key, $value, $exptime = 0 ) {
+		return $this->doWrite( 'add', $key, $value, $exptime );
+	}
+
+	public function replace( $key, $value, $exptime = 0 ) {
+		return $this->doWrite( 'replace', $key, $value, $exptime );
+	}
+
+	public function incr( $key, $value = 1 ) {
+		return $this->doWrite( 'incr', $key, $value );
+	}
+
+	public function decr( $key, $value = 1 ) {
+		return $this->doWrite( 'decr', $key, $value );
+	}	
+
+	public function lock( $key, $timeout = 0 ) {
+		// Lock only the first cache, to avoid deadlocks
+		if ( isset( $this->caches[0] ) ) {
+			return $this->caches[0]->lock( $key, $timeout );
+		} else {
+			return true;
+		}
+	}
+
+	public function unlock( $key ) {
+		if ( isset( $this->caches[0] ) ) {
+			return $this->caches[0]->unlock( $key );
+		} else {
+			return true;
+		}
+	}
+
+	protected function doWrite( $method /*, ... */ ) {
+		$ret = true;
+		$args = func_get_args();
+		array_shift( $args );
+
+		foreach ( $this->caches as $cache ) {
+			if ( !call_user_func_array( array( $cache, $method ), $args ) ) {
+				$ret = false;
+			}
+		}
+		return $ret;
+	}
+
+	/**
+	 * Delete objects expiring before a certain date. 
+	 *
+	 * Succeed if any of the child caches succeed.
+	 */
+	public function deleteObjectsExpiringBefore( $date ) {
+		$ret = false;
+		foreach ( $this->caches as $cache ) {
+			if ( $cache->deleteObjectsExpiringBefore( $date ) ) {
+				$ret = true;
+			}
+		}
+		return $ret;
+	}
+}
-- 
cgit v1.2.3-54-g00ecf